Yes, mochimon for Layton fits a lot. Now i don't remember, I know a baby can turn into different digimon according to how it is cared. I don't think tentomon would fit the professah. Do you remember to what else can Mochimon evolve to?

Also luke and patamon, yes, just YES! (And rose would have gatomon :3)

Descole would totally have a demidevimon (That would evolve to a badass Beelzemon)

.A. all this few days I was watching Digimon (random chapters of all seasons, plus full Digimon Savers I got like 3 years ago and I just watched it since past monday xD -dies-) also I watched yesterday de Digimon X-evolution movie. This is the cherry on top of my Digimon inner fan <3 I do love the series too!

Digimon is one of my most precious childhood-memories. xD But I only liked the first three seasons, the rest was.... meh. especially savers. the character design sucked. it looked like an... america-japan co-production, just like Yu Gi Oh and Pokemon. =____=